bing tracking image
  1. Radiator Fans
  2. Derale
  3. 8000 RPM
  4. 20 Inch Diameter
  5. Belt-Driven Fans
  6. Standard Rotation
Derale 20" Rigid, Steel-Blade Race Fan - Belt Driven - 8,000 RPM

Derale 20" Rigid, Steel-Blade Race Fan - Belt Driven - 8,000 RPM

lowest price pledge
Our Price: $45.95
You Save: 29%
Radiator Fans
Orders above $99 qualify for Free Shipping
Shipping Weight: 6 lbs
In Stock
Radiator Fans D17320 - Standard Rotation - Derale
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Need help with installation?
Locate installers near me
19-3/4" Diameter x 2" deep, replacement, belt-driven fan provides more airflow than factory models, no matter the RPM, and meets most racing regulations. Features durable steel blades and all-metal construction. Lowest Prices for the best radiator fans from Derale. Derale 20" Rigid, Steel-Blade Race Fan - Belt Driven - 8,000 RPM part number D17320 can be ordered online at or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (5)
  • Q & A (0)
  • Photos
  • Why etrailer?

Derale Radiator Fans

  • 8000 RPM
  • 20 Inch Diameter
  • Belt-Driven Fans
  • Standard Rotation
  • Race Fans
  • Derale
  • Steel
  • Black

19-3/4" Diameter x 2" deep, replacement, belt-driven fan provides more airflow than factory models, no matter the RPM, and meets most racing regulations. Features durable steel blades and all-metal construction.


  • Offers maximum full-time airflow
  • Meets most racing requirements for belt-driven fan applications
  • Serves as replacement for factory fan and fan clutch
  • Constructed of rigid, durable steel
  • Made in USA


  • Dimensions: 19-7/8" diameter x 2" deep
  • Flange adjustability: 1-3/4" - 2-1/4"
    • Pilot hole: 5/8" diameter
  • Rotation: standard
  • RPM rating: 8,000
  • 1-Year warranty


17320 Derale Belt-Driven, Rigid Race Steel Blade Fan

Item # D17320

Customer Reviews

Derale 20" Rigid, Steel-Blade Race Fan - Belt Driven - 8,000 RPM - D17320

Average Customer Rating:  4.6 out of 5 stars   (5 Customer Reviews)

19-3/4" Diameter x 2" deep, replacement, belt-driven fan provides more airflow than factory models, no matter the RPM, and meets most racing regulations. Features durable steel blades and all-metal construction.




Works better than expected. Put this on a Cat 3054T for my Morbark model 13 chipper. Stock fan was about $300.00 No complaints after one year of use.


Just installed this fan on a cj5, and wow this thing moves some air, at idle and all through the rpm range. I would definitely buy this again for other projects.


Kick Ass Blade!



Ask the Experts about this Derale Radiator Fans

  • Could Derale 20" Rigid, Steel-Blade Race Fan Push and Pull Air
    In theory yes, the Derale 20" Rigid, Steel-Blade Race Fan # D17320 could spin either direction and push or pull air. But since this is designed to mount to a pulley on an engine you wouldn't be able to get it to push air through a radiator.
    view full answer...
  • Does Derale 20 inch Rigid, Steel-Blade Race Fan, # D17320 Spin Clockwise or Counter Clockwise
    If you are in front of the vehicle, facing the engine, the standard rotation of the Derale 20 inch Rigid, Steel-Blade Race Fan - Belt Driven, # D17320, would be a clockwise rotation.
    view full answer...
  • Replacement Radiator Fan Blade for 1997 Dodge Ram 3500 with 5.9L Cummins Engine
    You can select a new radiator fan blade like the Derale # D17320 for your 1997 Dodge Ram 3500 5.9 Pickup by matching up the dimensions and mounting hole pattern of your OEM fan blade since these items are not vehicle-specific. The Derale # D17320 measures 19-7/8-inches diameter x 2-inches deep and has a 5/8-inch pilot hole. The slotted mounting holes provide an adjustment range from 1-3/4- to 2-1/4-inches. The linked page will let you review and sort all of our replacement fans.
    view full answer...
  • Replacement Race Fan For A 1985 Chevrolet C/K Series Pickup
    When it comes to installing The Derale 20 inch Rigid, Steel-Blade Race Fan - Belt Driven - 8,000 RPM # D17320 on your 1985 Chevrolet C/K Series Pickup will work if the mounting hole space on your original fan is between 1-3/4 inches to 2-1/4 inches, and has a pilot hole of 5/8 inches. If yours measures out to be different please reach back out and I can try and find something that will work.
    view full answer...
    Image 1 for
  • Determining Fit of Replacement Radiator Fan for 2002 Dodge Ram 3500
    Derale's radiator fans are designed as a universal-type fit item so that the fans can fit a wide variety of vehicles. To be sure that either of the fans you are looking at, the Derale 20 Inch Rigid, Steel-Blade Race Fan, Belt Driven # D17320 and the Derale 20 Inch Fan Clutch Fan # D17120, will fit well on your 2002 Dodge 3500 the best solution is to measure the space available for the radiator fan. I spoke with my contact at Derale and he confirmed that measuring is the best way to determine...
    view full answer...
    Image 1 for
  • Electric Fan Setup Recommendation for 1996 Dodge Ram with 5.9 Liter Cummins
    For a fan setup that would work well for your 22-1/2 inch wide setup the Derale 22-1/2" Dual, High-Output Electric Radiator Fan w/ Aluminum Shroud # D16830 would be a fantastic option assuming it would fit for a vehicle like your 1996 Dodge Ram with 5.9 liter Cummins that would need some serious cooling power. This setup has a shroud and dual fan setup that can move up to 3,750 CFM which would do a great job cooling the radiator. The fan diameters are 11 inches. Overall dimensions of the...
    view full answer...
  • Does Derale Race Fan # D17320 Move More Air Than Derale Flex Fan # D17019
    The two Derale fans referenced, their 20-inch Race Fan # D17320 and their 19-inch Flex Fan # D17019, will offer similar performance at lower RPMs, but at higher RPMs the Race Fan will deliver more air volume. As a result it will also put somewhat more drag on the motor. This is because the race fan is rigid and its blades maintain their profile at all speeds, while the flex fan blades are designed to flatten out at high RPMs to allow the air flow from the vehicles speed to provide much...
    view full answer...
  • Will the Derale Radiator Race Fan # D17420 Replace the Factory Fan in a 1988 Ford F-250
    The Derale 20 Inch Race Fan, # D17420, has a 19-7/8 inch diameter so it will fit within your 22 inch shroud. One thing to keep in mind with this fan is that it is a race fan which means it will require you to remove your fan clutch as well. It is designed to pull more air as your engines RPMs increase and not to be regulated by a clutch. Removing the factory clutch will effect the length of the spacer that you need. Once you have the clutch removed, you will want to measure from the water...
    view full answer...
    Image 1 for
  • Recommendation for a 1997 Dodge Ram 3500 Diesel and Mounting a Derale 20 Rigid Belt Driven Fan
    According to my contacts at Derale the 20 inch Rigid Steel Blade Race Fan # D17320 can not be mounted to a fan clutch, it is considered a rigid mounting system. This fan is considered a standard rotation, has a maximum rpm rating for up to 8,000 rpm. However, if you would like to consider a fan that will mount to your fan clutch, then you would need the # D17120. This style of fan would mount to your existing fan clutch, and would not need a spacer for mounting. It is also a standard rotation...
    view full answer...
  • Will Electric Fans be Effective for 2002 Dodge Ram
    An electric fan will absolutely be able to keep up and is going to be a really good benefit for when you are towing with your 2002 Dodge Ram 2500. You will want to get one that has a solid cubic feet per minute (CFM), and I recommend the Derale 16" Dyno-Cool Curved-Blade Electric Fan - 1,980 CFM # D18916. This is the best option because it is a great value, providing you with plenty of cooling power for the price. It can be used as a pusher or puller and you just need to make sure you...
    view full answer...
  • Availability of Radiator Fan for 2001 Dodge 2500 Cummins 5.9L Engine
    Sounds like you are looking for a direct-fit, bolt-on Flex-a-lite dual electric-fan system for your 2001 Dodge 2500 Cummins. The # FLX262 fits 1994-2002 Dodge Ram trucks with the 5.9L Cummins diesel. This dual 15 inch electric fans with shroud measures 37-1/4 inches wide x 20-1/4 inches tall x 4-1/4 inches deep. The replacement 15 inch S-blade fan blade for the Flex-a-lite Fan is # FLX31016K. I have linked both of these products to this page for your convenience.
    view full answer...

Do you have a question about this Radiator Fan?

  • Why

    At we guarantee:
  • Highest quality radiator fans for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate radiator fan information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee DeAnne T
Updated by:
DeAnne T
Employee Adele M
Updated by:
Adele M
Employee Daron K
Updated by:
Daron K
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Rachael H
Expert Research:
Rachael H
Employee Victoria B
Expert Research:
Victoria B

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.

Product Experts Available Now!
Call 1-800-940-8924